Micrel MIC2184 is a high efficiency PWM buck control IC with a wide input voltage range of 2.9V to 14V, and can be used to efficiently step voltages down in 1- or 2-cell Li Ion battery powered applications, as well as in fixed 3.3V, 5V, or 12V systems. Efficiencies over 90% are achievable over a wide range of load conditions with the MIC2184’s PWM control scheme.
The Micrel MIC2184 is a high efficiency PWM buck control IC designed for wide input voltage ranges from 2.9V to 14V. It supports both 1-cell and 2-cell Li-ion battery powered applications as well as fixed 3.3V, 5V, or 12V systems. The device achieves efficiencies over 90% across a wide range of load conditions.
| Oscillator frequency | 400kHz |
|---|---|
| Efficiency | >90% |
| Reference output voltage | 1.245V |
| Shutdown current | <5uA |
The oscillator frequency is nominally 400kHz, which can be divided by two to 200kHz.
Yes, it allows external synchronization to frequencies below its nominal 400KHz via the SYNC pin.
The device features a 1A shutdown mode with a quiescent current under 5uA.